The main character, a boy named Prayer Kobayakawa, is one of those who were invited to this Morinomiya Academy through the manifestation of a “gift. The characteristic that manifested itself in him is that he “cannot carry over new memories except for one thing he has decided to do. The first time I saw this, I was surprised to learn that the “new” version of the “old” version was not a “new” version. You don’t forget everything. You can only remember one thing. “Finding that one thing… I imagine it’s the only thing you have to accomplish at this school. and who gave me these words, they are the only guide. The protagonist lives a quiet life in a closed school, worrying and hiding the “fetters”…… loneliness of a lifetime in his heart. Then a transfer student, Koi Mikuriya, appears before him. She says, “I don’t want to give up anything. I want to experience the joy of youth here. Then she says, “Because I will die soon.” …… This is a story that questions the meaning of destiny. God is certainly there, and he keeps asking the boys about it.